For Commercial Buildings & Offices

Give your tenants answers, not assurances

Tenant complaints, HVAC concerns, post-renovation air quality, and building wellness certifications all demand independent, documented environmental assessments. ESG delivers building health testing as an independent third-party company that does not perform remediation.

Schedule a Building Assessment Call 336-373-1538
Healthy building specialists WELL & LEED documentation support No remediation conflict Serving NC, VA & TN
ESG technician collecting environmental samples at a commercial building window in North Carolina
What building owners rely on ESG for
23+
Years independent, since 2002
Multi
Point sampling planned zone by zone
0
Remediation conflict, independent testing only
A+
BBB rating, accredited business

Pursuing WELL or LEED certification? ESG provides independent IAQ baseline testing and ongoing monitoring documentation that can support WELL Building Standard and LEED BD+C Indoor Environmental Quality credit submissions. Requirements vary by program version and by credit.

Signs your building may need an assessment

Employees reporting headaches, fatigue, or eye irritation

Musty odors or HVAC complaints in certain zones

Recent renovation, new finishes, or new furnishings

Pursuing WELL, LEED, or healthy building certification

Any of these sound familiar? Schedule an assessment today

Common situations we handle

Every building has an air quality story

Whether you're responding to occupant complaints, clearing a space after renovation, or proactively building a healthier environment, ESG has the right assessment for your situation.

Employees reporting headaches or fatigue

Reports like these often prompt a closer look at VOC sources, ventilation performance, and CO₂ levels. ESG maps the building, helps narrow likely sources, and gives you prioritized recommendations. ESG evaluates and documents environmental conditions. ESG does not diagnose medical conditions or determine whether a building condition caused symptoms.

Post-renovation air quality clearance

New paint, flooring, adhesives, and furnishings off-gas VOCs that can persist in indoor air for weeks or months. Pre-occupancy testing documents conditions in the renovated areas before employees return.

Pursuing WELL or LEED certification

Building wellness certifications generally look for baseline IAQ testing, ongoing monitoring data, and documentation of ventilation performance. ESG provides independent assessments that can support these programs. Confirm the exact testing your credits call for with your certification consultant.

Glass commercial office building of the type ESG assesses across NC, VA and TN
From single suites to multi-floor towers, assessed zone by zone.
Services for commercial buildings

A clearer picture of your building's air quality

ESG's commercial building services go beyond a single air sample. We assess your building zone by zone within the agreed scope, and deliver actionable findings that building managers and ownership can act on.

Healthy building assessment

A comprehensive multi-point IAQ assessment across the occupied zones in your scope. Covers mold, VOCs, particulates, CO₂, humidity, and ventilation effectiveness. Produces a building health report with prioritized recommendations.

Learn about healthy building assessments

VOC investigation

Targeted investigation of volatile organic compound sources: new materials, renovation off-gassing, cleaning products, or equipment emissions. Identifies compounds captured in the samples and helps narrow their likely origins.

Learn about VOC testing

Ongoing air quality monitoring

Continuous or scheduled periodic monitoring programs that track air quality conditions over time. Provides an ongoing data record that supports WELL and LEED building wellness certification efforts.

Learn about air quality monitoring

Ventilation performance review

Assessment of HVAC system ventilation effectiveness, outdoor air delivery, and CO₂ levels in occupied spaces. Identifies underperforming zones and compares results against ASHRAE 62.1 guidelines.

Learn about ventilation reviews

Mold testing & assessment

Air and surface sampling for mold in commercial buildings, including post-water-event assessment and pre-occupancy clearance testing. All results from accredited laboratory analysis.

Learn about mold testing

Post-remediation verification (PRV)

Independent clearance testing after mold or water damage remediation in commercial spaces. ESG independently evaluates the designated remediation area against applicable visual, moisture, odor, particle, and laboratory clearance criteria at the time of inspection. Reports are structured for use in insurance claims, lease disputes, and re-occupancy documentation.

Learn about PRV
Why ESG

A building assessment that goes beyond a single air sample

Most environmental testing companies pull a few air samples and hand you a report. ESG approaches commercial buildings differently: we map the building by zone, correlate findings with HVAC layout and occupancy patterns, and give you findings that are actually actionable.

ESG is an independent third-party testing and consulting company and does not perform remediation. This separation helps reduce financial conflicts between evaluation and corrective work, so building owners and managers can weigh our findings on the data rather than on who profits from the fix. Technical reports receive review appropriate to the service and scope before delivery, with documentation built to stand up to scrutiny across NC, VA, and TN.

Schedule a Building Assessment
2002
Founded, 23+ years of independent testing
WELL
& LEED IAQ documentation support
0
Remediation services, no financial conflict
NC, VA & TN
Serving commercial properties in three states
The process

A building health assessment in four steps

ESG's commercial building assessment is methodical. We map your building before we sample it, so the results tell a coherent story rather than a snapshot of one location.

1

Initial site survey & zone mapping

We walk the building with your facilities team, document HVAC layout, occupancy patterns, and any known complaint areas before sampling begins.

2

Multi-point sampling

Air, surface, and bulk samples collected across the zones in the agreed scope, including areas with complaints, HVAC supply and return points, and comparative baseline locations.

3

Accredited lab analysis

All samples sent to an accredited third-party laboratory. Results are reviewed against current ASHRAE and EPA guidelines, and reports are typically delivered within 3 to 7 business days.

4

Building health report delivered

A comprehensive written report with findings by zone, prioritized recommendations, and, where applicable, supporting documentation for WELL/LEED credit submissions.

The business case for healthy buildings

Documented IAQ program vs. no monitoring

With an ESG building health program

Documented air quality gives you data to share with tenants, a record for insurance and liability questions, and a data trail that supports wellness building certifications.

  • Respond to tenant complaints with data, not assurances
  • Support WELL and LEED certification efforts
  • Help catch HVAC and moisture issues before they escalate
  • Differentiate your building with documented air quality

Without IAQ documentation

Tenant complaints have no independent counter-evidence. Wellness certifications are harder to pursue without a data trail. And when something goes wrong, you have no documentation to point to.

  • No independent data when tenant health claims arise
  • No data trail to support WELL and LEED wellness credits
  • HVAC problems can compound undetected
  • No competitive differentiation on building health
ESG inspector running air sampling equipment inside a commercial building in the Piedmont Triad
Calibrated instruments, accredited labs, and findings your ownership group can act on.
Common questions

Commercial building FAQs

What does a healthy building assessment actually cover?

Our commercial building assessment covers mold, VOCs, particulates (PM2.5/PM10), CO₂, humidity, ventilation effectiveness, and odor investigations where applicable. We tailor the scope to your building type, occupancy, and the specific concerns being reported. Findings apply to the accessible areas, conditions, locations, measurements, and samples evaluated at the time of service.

How does a VOC investigation work?

We collect air samples using passive samplers or sorbent tubes in affected areas and submit them to an accredited lab for compound-specific analysis. Laboratory sampling can identify certain compounds captured in a collected sample. Combined with building history, odor patterns, field observations, and screening data, it may help narrow potential sources. A sample alone usually does not prove the source or describe the entire building.

Can ESG support our WELL Building Standard certification?

Yes. ESG provides baseline air quality testing, ongoing monitoring data, and ventilation performance documentation that can support WELL Air feature submissions. We're familiar with WELL v2 and can help you understand what testing your specific credits call for. The certifying body decides whether a credit is met.

How long does an assessment take for a large commercial building?

Scope varies by building size. A single-floor office suite typically takes 2 to 3 hours. A multi-floor building may require a full day or phased visits. We'll give you a clear scope estimate after a brief discussion about your building and goals.

Can you set up ongoing monitoring for our building?

Yes. We offer scheduled periodic monitoring programs for commercial buildings: quarterly or semi-annual assessments that provide an ongoing record of air quality conditions and support wellness certification data requirements.

We had a water intrusion event. What should we do?

Contact ESG promptly. Water events can create mold risk within 24 to 48 hours. We can assess the affected areas, document conditions, and after remediation provide independent post-remediation verification (PRV) clearance, which is often requested for insurance claims and lease documentation.

ESG staff at an industry expo booth representing the Greensboro, North Carolina testing firm
Independent environmental testing across NC, VA & TN.

Your building's air quality should be an asset, not a liability

Schedule a comprehensive building health assessment and get actionable findings, not just numbers. ESG serves commercial buildings across NC, VA, and TN.

Schedule a Building Assessment Learn About Our Services

Or call us directly: 336-373-1538